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Measurements of irregularities in the mid‐latitude ionosphere with a radio interferometer
Author(s) -
Knowles Stephen H.,
Matsakis D.
Publication year - 1985
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs020i003p00375
Subject(s) - ionosphere , tec , interferometry , astronomical interferometer , total electron content , geodesy , f region , earth's magnetic field , physics , latitude , remote sensing , geology , atmospheric sciences , astronomy , magnetic field , quantum mechanics
Radio astronomy interferometers have potential use for systematic monitoring of medium‐scale irregularities in the ionosphere. In this article, precepts for their use are derived, and preliminary analysis of data samples from interferometers at Green Bank, West Virginia, and Magdalena, New Mexico, is presented. A typical differential electron content of about 10 15 /m 2 over a 35‐km baseline is observed. A day‐night correlation with TEC values is observed; we found the nighttime ionosphere to be more disturbed during high geomagnetic activity. Ionospheric irregularities are observed to persist over periods of an hour or longer.